Why Choose the Mersen W094825 5HT Time-Delay Miniature Fuse?
The Mersen W094825, catalogue reference MI5HT25V0.4, is a compact 5 × 20 mm time-delay miniature fuse designed to protect electrical equipment and industrial control circuits against overcurrent and short-circuit conditions. Its time-lag operating characteristic allows the fuse to tolerate brief current surges without unnecessary operation.
As part of the Mersen 5HT miniature fuse series, the W094825 is particularly suitable for circuits containing motors, transformers, power supplies and other inductive loads that may draw a temporary inrush current during start-up. This controlled delay helps maintain reliable equipment operation while still providing dependable protection against sustained overloads.
The fuse has a rated current of 0.4 A, a rated voltage of 250 V AC and an AC breaking capacity of 1,500 A. Its standard cylindrical dimensions make it compatible with suitable 5 × 20 mm fuse holders used throughout industrial machinery, electronic equipment and electrical distribution systems.
Key Advantages
- Compact 5 × 20 mm miniature fuse for electrical and electronic equipment.
- Time-delay operating characteristic withstands temporary start-up currents.
- 0.4 A rated current for low-current control and protection circuits.
- 250 V AC voltage rating suitable for a wide range of equipment.
- 1,500 A AC breaking capacity provides dependable fault interruption.
- Suitable for circuits containing motors, transformers and inductive loads.
- Standard cylindrical format simplifies replacement and maintenance.
Key Features
- Mersen 5HT miniature fuse series.
- MI5HT25V0.4 catalogue reference.
- 5 × 20 mm cylindrical fuse dimensions.
- 0.4 A nominal current rating.
- 250 V AC rated voltage.
- Time-lag fuse characteristic.
- 1,500 A AC breaking capacity.
- Pre-arcing I²t value of 0.74 A²s.
- Brass contact caps with a nickel-plated finish.
- Manufactured in accordance with IEC 60127-2 Sheet 5.
Reliable Time-Delay Circuit Protection
Time-delay fuses are designed to withstand short-duration current surges that occur when motors, transformers, power supplies and other inductive equipment are energised. This helps prevent nuisance fuse operation during normal start-up while maintaining protection against sustained overloads and high fault currents.
The Mersen W094825 combines a compact 5 × 20 mm format with a high breaking capacity, making it suitable for use in densely populated control panels and electrical equipment. When installed in an appropriately rated fuse holder, it provides a straightforward and replaceable method of protecting sensitive components and wiring.
Typical Applications
- Industrial control panels and automation equipment.
- Small motors and motor control circuits.
- Transformers and power supply circuits.
- Electronic equipment and instrumentation.
- Machinery containing inductive electrical loads.
- Heating, ventilation and building control systems.
- OEM equipment and electrical distribution assemblies.
